To aim at video structure analysis

a new shot boundary coefficient model is proposed.Firstly

windowed frame differences are calculated using the special approaches

which have different characteristics for intra-shot frames and shot transition frames respectively.Secondly

shot boundary detection operators are used to calculate shot boundary similarity coefficients.If shot boundary similarity coefficients are bigger

corresponding frames are more probably shot boundaries.Thirdly

to improve shot boundary similarity coefficients

shot boundary coefficients are defined based on shot boundary similarity coefficients.Shot boundary coefficients have many good characteristics

and are used to not only detect shot boundaries independently

but also combine traditional shot boundary detection methods for shot boundary detection.Therefore

a robust shot boundary detection framework is provided.Experimental results show that shot boundary detection methods

based on the shot boundary coefficient model

can improve the performance of shot boundary detection.